Coordinate GPS medie per codice postale 78450: 48.841, 1.995

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lista delle città :
>> Chavenay 78450, Île-de-France, Yvelines, Arrondissement de Saint-Germain-en-Laye, coordinate GPS: 48.8544,1.9916
>> Villepreux 78450, Île-de-France, Yvelines, Arrondissement de Saint-Germain-en-Laye, coordinate GPS: 48.8281,1.9976